Premises and
purposesThe research performed in the State Archives of Venice had the main
goal of examining the potential of the documents produced by Venetian officers
with respect to information on European earthquakes (Daltri e Albini, 1991),
in the same perspective of the studies carried out at the Vatican Archives,
Rome (Castelli, 1993), at the Archivo General de Simancas, Spain (Rodriguez
de la Torre, 1993), at the Haus-, Hof-, und Staatsarchiv, Wien (Vocelka,
1993).Samplings have been concentrated on the time-window 1680-1770, with
the purpose of verifying if governors of the territory of the Republic of
Venice as well as representatives abroad could be considered as a network
of "observers" spread out Europe and the Mediterranean area, investigating
the documents they produced, today stored in the State Archives of Venice
to collect records useful to macroseismic investigation (Guidoboni and
Margottini, 1988; Albini and Daltri, 1991).The presence of Venetian "observers" in Europe and in the Mediterranean
area, both in direct ruled territories and in extra dominion areas is shown
in Fig. 1. Venice had consuls in localities strategically significant on
the routes of European and Mediterranean trade, since 12th century (Luzzatto,
1961); first ambassadors were accredited at Costantinople and Rome courts
in 13th and 14th centuries. Fig. 1a shows permanent and intermittent seats
of consuls and ambassadors from the late 17th century to the end of 18th
century.Venetian governors ("rettori") were densely distributed in the Republic,
divided into two main administrative regions since 15th century (Fig.
1b):- "Stato di Terraferma" or only "Terraferma" (Mainland) approximately
consisted of Northeastern Italy (today regions of Friuli, Veneto and part
of Lombardy), mostly acquired in the mid-fifteenth century; borders of Venetian
dominion of "Terraferma" did not vary significantly during three centuries
(Cessi, 1944-46; Lane, 1978; Cozzi e Knapton, 1986);- "Levante" (East), then "Stato" or "Dominio da Mar" (Dominion of
the Sea) consisted in the possessions of Istria; Dalmazia, with the exception
of Ragusa; part of Albania; some localities (or the whole between 1686 and
1718) of Morea; Eubea, Cipro and Creta, ceded to the Turks respectively in
1470, 1571 and 1669; the Ionian Islands and some minor Aegean islands (Lunzi,
1858; Dudan, 1938).

Fig. 1 - Territory of the Republic of Venice
(1680-1770) and main seats of governors

and representatives.

The Archive of the Republic of
VeniceAs Da Mosto (1937-40) says in his introduction to the inventory of
the State Archives of Venice, the Serenissima's need for archives, to preserve
acts and documents produced by Venetian offices, goes back to the 13th century.
In 1266 the "Maggior Consiglio", the Venetian patriciate assembly with executive
and legislative powers in that period, established that all the resolutions
had to be transcribed and that a copy had to be kept. A "Cancelleria Ducale"
(Ducal Record Office) was probably created in the same period; in 1402 a
"Cancelleria Secreta" (Secret Record Office) was charged to keep private
and confidential documentation. The two "Cancellerie" were placed inside
the Ducal Palace until 1797.Today, the State Archives of Venice, in the ex-monastery of "Santa
Maria Gloriosa dei Frari", keep most of the survived documents of the Serenissima
Republic of Venice, that ceased to exist in 1797. After the dismemberments
done by the governments which followed the republican one, in 1815 the documents
concerning the existence of the Republic were concentrated in a unique place,
together with the notarial archives, the archives of the suppressed religious
corporations and various familiar and individual archives.Fires (about ten, among which that of 1577 was perhaps the most
destructive), but also risings and intentional destructions are responsible
for gaps in the funds. Part of the documents produced by officers of the
Republic of Venice is not stored in the appropriated funds and series of
the State Archives of Venice, but in miscellaneous funds or in other Venetian
depositories, like the Library of the "Correr" Civic Museum and the "Marciana"
National Library.

ContentsDocuments are generally structured according to the original organization
of magistracies and offices of the Republic of Venice. Political and
administrative forms of the Serenissima attracted local and foreign scholars
since the Renaissance, so that a rich bibliography on the subject is available
(Cicogna, 1847; Soranzo, 1885; Morozzo della Rocca e Tiepolo, 1972). The
following short account on the structure of each magistracy and contents
of its archives, far from being exhaustive, has therefore to be considered
by the reader only as a help for a "tour" inside an Archive that has been
compared to a labyrinth by its most appreciated experts (Da Mosto, 1937-40;
Morozzo della Rocca e Tiepolo, 1972). As they say in their works, their attempts
to divide and structure the funds according to a logical and ordered sequence
of magistracies, offices and respective attributions, had been hampered by
the peculiarities of the Venetian system. This thesis was expressed also
by Cessi (1944-46) who wrote that a systematic classification of Venetian
magistracies is not possible according to today distinction among legislative,
administrative and judicial powers; the reason is that each magistracy, either
because it was charged or because it was delegated, participated in all the
different powers.Funds of the main magistracies of the Republic of Venice chosen for
the samplings are shown in Fig. 2; they contain, more or less, the 50% of
the documents stored in the archives. Availability of documents has been
indicated for the whole time-span they embrace, while samplings have been
carried out only inside the shaded time-window.

Senato. The fund "Senato" gathers most of the
documents produced by Venetian officers in the period of interest: in fact,
the "Maggior Consiglio", assembly of the Venetian patriciate and supreme
organism with respect to administrative, legislative and executive powers
at the beginning of the Republic, had yielded its privileges to the Senato
at least since the 16th century (Lane, 1978; Cozzi e Knapton, 1986). The
main series of this fund which are of interest for our research are: - "Decreti": these are the resolutions taken by the Senato in its
nearly daily meetings; in the beginning they were differentiated according
to their pertinence to administrative affairs ("Misti") or to political ones
("Secreti"); after the conquers of the mid-fifteenth century, they were further
divided into resolutions respectively concerning the "Terra" and the "da
Mar" dominions; a further subdivision was then created in 1620, according
to the addressee of the resolution ("Rettori", that is governors; "Corti",
that is foreign countries); - "Dispacci" and "Relazioni": these are documents sent to the Senato
both by the Venetian governors and the representatives abroad. These two
series are structured according to the sender office (governor; consul;
ambassador and resident), then further subdivided according to the geographic
pertinence of the document (sub-governments or single localities).Decreti. A "Decreto" (resolution) of the Venetian
Senato can be simply a deliberative act; or, for instance as in the case
of interventions after an earthquake, it can appear as a letter specular
to a document sent by a peripheral governor. The document which originated
the resolution is very often annexed, or there is a clear reference to it
in the resolution. This habit can be useful for the research because sometimes
the peripheral document

Fig. 2 - Funds of the main Venetian magistracies
chosen for the samplings in the time-window 1680-1770
(shaded).

cannot be found anymore inside the archive or the fund it belongs
to. Or, the "answer" resolution can permit to indirectly know the contents
of a lost document, as in the case of one dispatch of the Provveditore
Estraordinario of the island of Santa Maura (Leukada) concerning the 1704
earthquake (ASVe, 1705).A "Decreto" can be addressed to another
central magistracy, involved in expressing its opinion on the subject of
the resolution. The insertion of the wording "E da mò" (and from here)
in the final paragraph marks such handing on: the quoted wording permitted
to retrieve information on 1767 Ionian Islands earthquakes in documents of
the magistracy of "Deputati e Aggiunti alla Provvision del Denaro Pubblico"
(ASVe, 1768a, b, c, d, 1769, 1770a, b, c).Dispacci. The dispatch - and the letter which
is very similar to it - is the typical module of communication between peripheral
and central magistracies (Carbone, 1974). This peculiarity makes the series
"Dispacci" particularly interesting for studying earthquakes. The more or
less weekly periodicity of the dispatches and their production in the areas
where the earthquake occurred makes them the documents which open the series
of archivistic evidences on an earthquake. Moreover, dispatches written by
the most important officers (like for instance the Provveditore Generale
da Mar) very often contain "inserte" (annexed documents). The "inserte" are
copies of documents sent to their "superiors" by minor officers of the area
in which the earthquake took place. They can be very different in type: survey,
letter, report, estimate of the necessities for the reconstruction, and so
on. The annexed documents permit, in some cases, to shorten the temporal
distance between the seismic event and the first written evidence on it,
as well as to enlarge the spatial distribution of the information. This aspect
is clear in the case of the 1690 Villach earthquake (see below) and it has
been analyzed in details in a recent contribution on Venetian documents on
the 1767 events in the Ionian Islands (Albini, 1991).Relazioni. The most significant difference between
the series "Dispacci" and "Relazioni" (reports) is the type of documents
they contain. While a dispatch is inserted in a documentary flux, the relation
is a document which stands alone, being the final report both of governors
and diplomatic representatives at the end of their two (or three) year charge.
Governors gave in their report to the Senato a comprehensive description
of the ruled territory: demographic figures, economic life, and so on; diplomatic
representatives summed up developments of politic and economic life of the
country they lived in as well as a state-of-the-art of their diplomatic efforts.
Many "Relazioni", internal (Tagliaferri, 1973-1979) as well as diplomatic
ones (Alberi, 1839-1855; Barozzi e Berchet, 1857; Moscati, 1943), have been
published. Many gaps can be found in the series "Relazioni", also because
many Venetian representatives failed to write the final report. Gaps and
the implicit chronological discontinuity of the series limit the use of this
type of source in the research of historical seismology.

Collegio. This magistracy was formed of 16 "Savi"
(Sages) appointed by the Senato, and they acted as State ministers (Tamba,
1977). At the beginning they formed three consultative commissions, which
then became institutional and durable: the six "Savi del Consiglio" superintended
all the current government affairs, while the five "Savi di Terraferma" devoted
themselves especially to the military and financial aspects; the five "Savi
agli Ordini" ruled the maritime and naval activities of the Republic. Together
with the "Minor Consiglio" (magistracy that will not be considered here,
made up of six officers) they formed the "Pien Collegio", who, among other
offices, had to give audience to foreign ambassadors and to examine all
dispatches and letters from governors in Venetian territories as well as
in foreign countries.Lettere. The series "Lettere" contains the answer
of the Collegio to dispatches sent by Venetian diplomatic representative;
dispatches were read in the Collegio and then sent to the Senato who had
the charge of resolving about the subjects they were dealing with. Some samplings
have been carried out in this series for the 1690, Villach, and 1755 Lisbon
and Valais earthquakes: no information has been found.Suppliche e risposte. The other four series,
that are "Suppliche commesse ai Savi", "Suppliche presentate al Collegio",
"Risposte di Dentro" and "Risposte di Fuori", consist of the supplications
to the Collegio from communities, religious orders or single Venetian citizens.
The petitions sent to the Savi are in the series "Suppliche commesse ai Savi"
and "Suppliche presentate al Collegio"; those sent by the Collegio to other
central magistracies or to the governors, to ask for more details on their
admissibility, are respectively in the series "Risposte di Dentro" and "Risposte
di Fuori". Since these documents might be applications for refund of expenses
and tax relief, they are likely to contain information on damage to public,
religious and private buildings.Due to logistic difficulties, most of the documents of these series
cannot be consulted. Samplings have been carried out only in the "Risposte
di Fuori" series. Two petitions have been found: the former concerning the
monastery of Santo Spirito in Zakynthos, damaged by the 1743 earthquake (ASVe,
1743) and the latter regarding a church in Zakynthos, presented by the family
Gialina after the 1767 event (ASVe, 1768e). This information is not included
in other Venetian sources examined for the two earthquakes.

Capi del Consiglio dei Dieci. Correspondence
between governors and the "Capi del Consiglio dei Dieci" is today stored
in the series "Dispacci dei rettori". These documents concern State security,
keeping of public order, administration of justice. Even if in the 18th century
many of the powers of the "Capi del Consiglio dei Dieci" were already yielded
to the three "Inquisitori di Stato", the main interest of the fund consists
in its about 4.500 archivistic units. The offices of the magistracy seem
to make it difficult that macroseismic information can be found in such
documents. Anyway, it can be hypothized that information on damage to jails
or social disorders following an earthquake could be found in the
dispatches.

Cinque Savi alla Mercanzia. The fund of the "Cinque
Savi alla Mercanzia" gathers the documentation of the five officers who,
since 1506, superintended trading activities, industry, navigation, artisanat,
customs and duties. The structure of the fund is similar to that of "Senato".
The most interesting documentary types for the study of seismic events are
those of the series "Dispacci" and "Lettere". Anyway, it has to be stressed
that, both in Da Mosto (1937-40) and in the handwritten and typewritten
inventories available in the State Archives of Venice (nn. 224 bis and 225),
the distinction between the two series sometimes is not very clear and definite.
Both the series are alphabetically ordered, according to the seats of governors,
consuls and ambassadors. Lettere. This series contains the correspondence
sent to the "Cinque Savi" by governors, ambassadors and residents on commercial
aspects of the areas where they were living. Due to the many gaps in the
files, it is not possible to make a reliable hypothesis on the frequence
of the letters. For this reason, more attention has been paid to the series
"Dispacci".Dispacci. This series gathers dispatches sent
to the "Cinque Savi alla Mercanzia" by the consuls. Consuls' main charge
was to let the central magistracy know the state of trading activities in
the locality in which they were living. Fig. 3 shows the localities in which
the Republic of Venice had a consul in the investigated period, the chronological
extension of the documents today available in this series (according to nn.
224 bis and 225 inventories) and the carried out samplings. Special attention
has been devoted to this fund on the supposition that the business stagnating
could be placed among the indirect effects of an earthquake. Seats of consuls
for which documents of this fund still exist are considerably more in number
than those stored in the fund Senato (Fig. 2). The consul and the diplomatic representative network offers a good
number of observation points, fairly distributed from a geographical point
of view (Fig. 1). Moreover, if an earthquake occurred in a country in which
no accredited ambassador existed (like Portugal, for instance), consul's
dispatches to the "Cinque Savi alla Mercanzia" could be the only available
sources. Results of the samplings in the series "Lettere" and "Dispacci"
are heavily conditioned by gaps in the documents. Evidences have been found
on

the following earthquakes: Ancona, December 1690; Livorno, 1742;
Cephalonia, 1767. More information on the December 1690, Ancona earthquake
can be found in the next paragraph. A preliminary analysis of the information
on the 1742 events available in the dispatches of the Venetian consul in
Livorno has been proposed in a recent contribution (Albini and Daltri,
1991).Information on consequences of the 1767 Cephalonia earthquake has
been found in a dispatch written by the Venetian consul in Patras (ASVe,
1768f). The dispatch does not give direct information on the effects: the
consul explains that after the earthquake an important migratory flux started,
from the island of Cephalonia towards the Morea. This is the only, even if
indirect, information on an earthquake found in the samplings in the dispatches
from Venetian consuls inside the territory ruled by the Ottoman Empire. The
negative results of these samplings could depend on the limited spatial horizon
(the locality of residence) to which consuls normally refer in their dispatches
to the "Cinque Savi alla Mercanzia".

Some samplingsThe documentary ensemble presented before can be seen as the "primary
conditioning imposed to historical research" (Cammarosano, 1991): unexpected
gaps inside the inventories files and logistic difficulties can be considered
as reasons for the fact that the following pages can appear not homogeneous
either in the examined funds or in the sampling results.

November and December 1755The sampling on the two earthquakes of 1755, November 1, Lisboa, and
December 9, Valais, is here presented as an example of the method used in
searching information on seismic events in documents written by Venetian
representatives abroad. These are the examined funds: - "Cinque Savi alla Mercanzia", series "Dispacci", sub-series "Consoli";
- "Senato", series "Dispacci", sub-series "Ambasciatori e Residenti"
(see Morozzo della Rocca, 1959, for the peculiarity of the documentation
of this sub-series), and series "Decreti", sub-series "Corti".

Cinque Savi alla Mercanzia, Dispacci, Consoli.
N. 225 inventory of the fund "Cinque Savi alla Mercanzia", available only
typewritten at the State Archives of Venice, indicates that consul dispatches
are available from Lisbon within the time-window 1713-1773 (ASVe, 1713-1773)
and from Cadiz within the time-window 1694-1780 (ASVe, 1694-1780). Direct
examination of the files permitted to check the existence of documentary
gaps: the time-span embraced by the documents is shown in Tab. 1.

At this stage of the research, there are no hints to explain the lack
of consul dispatches from Cadiz in the period 1725-1761. The Republic of
Venice had no ambassador accredited at the Portuguese court. Since no documents
are available between 1752 and 1765, it can be supposed that no Venetian
consul either was in Lisbon at the time the earthquake occurred, and that
living in Lisbon after the earthquake was so "hard" to discourage the arrival
of the new consul. The first consul after the earthquake was surely in Lisbon
in 1765; in one letter of November 1766 (ASVe, 1766), he regretted that he
had to support additional expenses to attend the audience of the court, since
it was still residing out of the city because of the damage caused by the
earthquake. Except for this indirect evidence, no information has been found
in this fund for the localities of Lisbon and Cadiz, even if they are inside
the damaged area of the November 1, 1755 earthquake.

Fig. 4 - Temporal scansion of some Venetian
ambassadors' and residents' dispatches from November 4 to December 31,
1755.

Senato, Dispacci, Ambasciatori e Residenti. For
the year 1755, typewritten inventory n. 315 indicates that dispatches are
available from the localities of Costantinople, Paris, Vienna, London, Napoli,
Torino, Madrid. Dispatches from all the localities, except Costantinople,
contain information on November 1 and December 9, 1755 events (Fig. 4).Following precise instructions, each officer sent a dispatch to the
Senato every week: in his dispatch of November 4 the Venetian ambassador
at the Spanish court, Girolamo Ascanio Giustinian, described with the following
words the effects of the November 1 earthquake in Madrid (ASVe, 1755a):

His sources are letters and reports, some of which annexed to his
dispatches, reaching the court from Lisbon itself and from the southern areas
of Spain. Information on damage to localities in Morocco is given by a report
annexed to the December 16 dispatch (ASVe, 1755c). The report is said to
come from the court of "Mechinez" (Meknés) and it forwards information
on effects in the localities of Fez, Sal, Tetuan, Larache, Tanchez (Tangeri),
Arzila, Mamora, Safi, Santa Croce. The same report contains information also
on another shock that took place on November 18, which is said to have produced
heavy damage in the localities of Fez, Meknés and Tetuan.News on the earthquake in Portugal and Spain spread throughout Europe
by means of the diplomatic channels. This is the beginning of the description
of the earthquake effects contained in the dispatch written on December 6
by Pietro Correr, ambassador at the Habsburg court in Schönbrunn (ASVe,
1755d):

Giovanni Alvise Mocenigo, ambassador at Paris, mentions the earthquake
for the first time in his November 23 dispatch (ASVe, 1755e); the resident
in London, Giovan Francesco Zon, in the December 4 one (ASVe, 1755g); the
resident in Torino, Giovanni Gobbi, in the December 6 one (ASVe, 1755h);
the resident in Naples, Cesare Vignola, in the December 9 dispatch (ASVe,
1755m).The December 13 dispatch of the resident in Torino (ASVe, 1755i) and
the December 14 one of the ambassador at Paris (ASVe, 1755f) give information
on the December 9, Valais, earthquake. While the latter reports information
"heard" from other sources concerning the localities of Strasbourg and
Genève, the resident in Torino says that the earthquake was felt in
the town and particularly in the Royal Palace (ASVe, 1755i) and he adds second
hand information on the Piemonte localities of Vercelli, Ivrea and Novara.
A preliminary analysis of the information has been presented in a recent
contribution (Albini and Daltri, 1991).

Senato, Decreti, Corti. Venetian Senato answered
to the dispatches from its representatives with resolutions addressed to
residents and ambassadors. Moreover, a "Lettera al re del Portogallo" (Letter
to the King of Portugal) was written on December 27 (ASVe, 1755o): since
no Venetian ambassador ever existed at the Portuguese court, as already recalled,
the letter was sent to the Venetian ambassador in Madrid, who gave to the
Spanish ambassador the charge to deliver it to the Portuguese court (ASVe,
1756).

The analysis of the records supplied by Venetian documents on the
November and December 1755 earthquakes shows that most part of the information
is second hand one. Only in two dispatches, that from the ambassador in Madrid
(ASVe, 1755a) and that from the resident in Torino (ASVe, 1755i), the Venetian
officers appear in a double role: direct observers of the earthquake in the
localities they were living, and collectors of information from other localities,
both in the same country and from other country courts.
December 1690The December 4, 1690, Villach earthquake has been studied in the frame
of the project by an Italian team (Cergol e Slejko, 1991; Barbano et al.,
1993); collaboration has also been undertaken with an Austrian team (Eisinger,
1991; Eisinger and Gutdeutsch, 1993). The areas south of the Alps for which
seismological compilations supply information are Friuli and Istria. Both
the areas in that period were mostly under Venetian dominion (Fig. 1). This
is the reason why a sampling has been carried out inside Venetian documents.
The selected funds and series are mainly those which contain documents written
by Venetian governors of the localities probably involved in the event.According to the inventories, survived documents for the area and
the period of interest have been examined at least for the time-window December
1690-March 1691. The direct study of the documents has evidenced the following
problems. For the "Patria of Friuli", as Friuli was called during the Venetian
domination, the series "Dispacci" of the fund "Senato" contains documents
from the "Luogotenente" (Lieutenant) of Friuli, the most important Venetian
governor, resident in Udine, and from those governors who were under his
direct jurisdiction (ASVe, 1689-1692). From the Venetian departments near
the Friuli area, documents are available only from the localities of Feltre
(ASVe, 1689-1697a), Belluno (ASVe, 1689-1697b) and Palma, today Palmanova
(ASVe, 1688-1691). The fund "Reggimenti", which also stores documents of
the "Luogotenente" of Friuli, shows many gaps. Letters to the "Capi del Consiglio
dei Dieci" from Udine and Cividale in Friuli, the only available ones according
to the handwritten inventory at the State Archives of Venice (n. 95/3), are
chronologically very discontinuous (ASVe, 1690-1699; 1681-1794).For Istria, coeval gazettes ("Avvisi") report information of damage
in Rovigno and Parenzo. Unfortunately, there are no files entitled to governors
(podestà) of these two localities, while the documents contained in
the files generically entitled "Istria" (ASVe, 1690-1692) and "Raspo e
Capodistria" (ASVe, 1674-1699) show many gaps. According to the n. 95/3
handwritten inventory, only two letters written in the years 1690 and 1691
by the "podestà" of Parenzo to the "Capi del Consiglio dei Dieci"
have survived (these two letters have not been examined due to logistic
difficulties). According to n. 225 handwritten inventory, the letters of
the Rovigno and Parenzo "podestà" (governors) to the "Cinque Savi
alla Mercanzia" do not cover the period.

Fig. 5 shows the temporal scansion of the documents contained in the
file intitled "Udine", from November 22, 1690 to January 13, 1691 (ASVe,
1678-1704). Bazochi, the governor of the Venetian fortress at Chiusa (today
Chiusaforte), informed the "Luogotenente" of Friuli that the fortress had
been damaged by an earthquake, without mentioning the date of the event (ASVe,
1690a). The date of the document is quite unreadable because of an ink spot
right on it. The document was anyway written before December 14, 1690: in
this date the "Luogotenente" of Friuli, Vincenzo Pisani, sent to the Senato
a dispatch (ASVe, 1690b), and a copy of the Chiusa governor's letter was
annexed to it. Vincenzo Pisani asked the Senato the permission to produce
a survey. The Venetian Senato gave the permission with the December 23 resolution
(ASVe, 1690c).

The "Luogotenente" Pisani sent three dispatches to the Senato between
December 4 (date of the earthquake) and December 14, date of the dispatch
in which he gives information about Chiusa: in none of them there is reference
to earthquake effects in Udine or in other localities. In the December 14
dispatch (ASVe, 1690b), the "Luogotenente" refers to the earthquake as the
one "fattosi ultimamente sentire in queste parti" (which has been recently
felt in these places): this permits to hypothize that the earthquake was
simply felt in Udine, or that damage was so slight that the governor did
not consider necessary to let the Senato know that such an event had
occurred.The Senato resolutions of the series "Terra" have been systematically
examined until February 1693 (ASVe, 1690-1693), but they do not report more
information on the earthquake. In order to find the survey requested for
the fortress of Chiusa, an examination of the inventory of the fund "Provveditori
alle Fortezze" (Proveditors of Fortresses), available typewritten at the
State Archives of Venice, has been carried out too. This magistracy, created
in 1542, was charged of the special duty to take care of Venetian military
structures. No documents concerning the Chiusa fortress are listed in
it.Because of the chronological and geographical proximity to the December
4 event, a sampling has been dedicated also to the December 22, 1690, Ancona
earthquake. Aim of the sampling was to verify if the December 4 earthquake
was felt or even simply echoed outside the Venetian territory and the sensibility
level of the Venetian representatives abroad with respect to seismic events.
The sampling was carried out in the consul dispatches of the fund "Cinque
Savi alla Mercanzia".The effects of the December 22, 1690 event in Ancona are described
by the Venetian consul in Ancona, Bartolomeo Toroglioni, as follows (ASVe,
1690d):

Fig. 5 shows that from November 22, 1690 to January 13, 1691, the
Venetian consul in Ancona sent three dispatches to the "Cinque Savi alla
Mercanzia". Principal duty of the consul was to send to the officers of the
"Cinque Savi alla Mercanzia" in Venice precise details of the commercial
activity of the Ancona harbour: names of the ships and of the owners,
characteristics of their cargo, dates of arrival and departure, and so on.
In order to have a deeper knowledge of the periodicity of his dispatches,
some years (1689-1692) of his correspondence have been examined. To accomplish
his charge, he sent a dispatch every two weeks during the "good" seasons,
spring and summer, but the frequency of the documents decreases during autumn
and winter. This explains why he wrote only one dispatch per month in November
and December 1690. In his dispatch of December 30 he regrets to be late in
sending the information, due to the discomfort caused by the earthquake.
An element to be considered is that he does not mention the earthquake and
its effects in his successive dispatches: such an element allows to presume
that the December 22, 1690 earthquake did not influence the normal life of
the town of Ancona for a long time.

ConclusionsVenetian governors and representatives have been proved to be interested
observers and earthquake reporters: original documents and information have
been found on all the earthquakes about which priority research has been
carried out. These results mainly suggest the effectiveness of the preliminary
investigation on the archive structure and on the peculiar characteristics
of each type of document.The retrieved records cover a wide range of earthquake effects, from
detailed descriptions of damage to precise information on earthquake perception.
Rather obviously, documents produced by Venetian governors in charge of
administering peripheral territories inform central magistracies of the
consequence of destructive earthquakes: from emergency intervention to surveys
on damage to public properties (churches, fortresses, governor residence,
and so on). This aspect is documented by the case of Chiusa fortress in occasion
of the 1690 earthquake, and in a more extended way by the Ionian Islands
earthquakes. But the "good government" attitude of Venetian governors is
such that, in occasion of very destructive earthquakes (e.g. Cephalonia,
1767), damage to private buildings is also reported, thus giving a more complete
picture of the earthquake effects. It is instead less obvious that records
of mere perception should be so precise: concerning Ionian Islands earthquakes,
a good amount of records have been found both on foreshock and on
aftershocks.It is worth to stress that differences in the type of information
seem also to depend on the type of document that supplies the information.
The rich information above described is rather different from the essential
and meagre details on earthquake effects, mostly referred to the localitywherethe
Venetian officer resided, found in dispatches written by consuls and ambassadors.
In these documents, information on damage (e.g. Ancona, 1690; Livorno, 1742)
or mere perception (Livorno, 1742, Valais, 1755) are not treated differently.
The general observations here proposed concern the entire research
carried out at the State Archives of Venice. However, it has to be stressed
that such observations do not depend only on the results - presented in this
paper - about Eastern and Central Alps earthquakes. A substantial part of
the research has been devoted to earthquakes in the Ionian Islands from 1704
to 1769: because of the peculiarities of the materials retrieved on these
earthquakes, it seemed more convenient to present the results in an another
paper (Albini et al., 1993).